Jon Wittwer
About the author:
Jon Wittwer is the founder, president, and editor of Vertex42.com. In 2003, Jon combined his interest in web development with his love of Excel to create what would become the Vertex42 you see today. Jon has a Ph.D. in mechanical engineering, but now spends the majority of his time creating, improving, and writing about the spreadsheet templates that are being used by millions of people and businesses all over the world.
Answering the question “How much do I need to save for retirement?” requires you to estimate how much you think you could live on after you retire. But, don’t forget about inflation. If you think you could live on $75,000 based on today’s prices, what would that be equivalent to 20 years from now? We [...]
Where is your immunization record? Where do you keep the vaccination records for your children? Does your doctor have a copy? Do keep paper copies in your safe? Do you carry your immunization card in your purse or wallet? Or do you even have an up-to-date vaccination record? I have no idea when I last [...]
Announcement of the new Vertex42 Money Manager – a free powerful Money Management spreadsheet that can be used in place of other money management software.
One way to know if you want to follow a blog, listen to a talk-show, or even become someone’s friend, is to find out if the principles you want to live by match up with the other person. So, here is Vertex42’s list of personal finance principles. Update 10/27/2015: I’ve added the Principle of Sufficiency [...]
Snowflaking has surfaced as a new popular term related to debt reduction. I would like to take some time to explain what this means, and how you can add “snowflakes” using the Debt Reduction Calculator. Snowflaking is basically just a new term for an old concept: Making frequent, small, one-time extra payments towards your debt. [...]
If you budget, surely you’ve had to deal with the problem of how to track your savings goals. Do you do it within your budget somehow? Do you try to make Quicken do what you want? Perhaps you’ve tried the new Mint.com service? Part of the problem with tracking savings goals comes from trying to lump all [...]